CSEMP assessment of naphthalene in sediment at Fladen Ground
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 47.40 | 49.97 | -20.70 | 41.40 | |||
linear | 2 | 48.97 | 54.31 | -20.49 | 40.97 | 0.425 | 1 | 0.5144 |
smooth (df = 2) | 3 | 49.75 | 59.75 | -19.87 | 39.75 | 1.226 | 1 | 0.2682 |
smooth (df = 3) | 4 | 50.97 | 68.97 | -19.49 | 38.97 | 0.776 | 1 | 0.3783 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2018 | 0.7914 | 1.1265 | 0.3351 | 0.5096 | 0.658 | 0.5292 |
last 20 years | 2005 | 2018 | 0.7914 | 1.1265 | 0.3351 | 0.5096 | 0.658 | 0.5292 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 3.08 | 8.00 | 0.953 | 0.351 | 2.711 | 0.0133 |
ERL | 3.08 | 160.00 | 3.949 | 0.351 | 11.235 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
PAH (parent) data
PAH (parent) assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for pah_(parent) in sediment
- Accessment criteria for pah_(parent) in sediment
Media : Sediment (unsieved)
Station : Fladen_FlaOpenSea_se02 (Fladen Ground)
Determinand : Naphthalene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Fladen_FlaOpenSea_se02 (Fladen Ground)
Determinand : Naphthalene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020